Printing large pdf files

[Jeff Borders]

> Hello, I work for a major retailer who is converting from a script-based HP Jetadmin setup on Solaris using straight lpd printing.  We're switching to cups and plan to push out catalogs to each store.  I need to print a 300MB PDF file to various HP 3800/4700 printers, all with >=128MB Ram.  I can print 40MB PDFs any way I choose, raw or PS.  But the true load test is the giant 300MB PDF that will go out about once a year to over 1000 stores. ie. 1000 queues.  The other complication is we have slow links to all of the stores.  It works now with the old system.  But with cups it does not.  I'm convinced it's some kind of timeout because I'll get two banner pages and no job in between.  This is running on SLES 10.2.  I have read the Michael Sweet Cups book many times looking for an answer.
>
> su-cupsprd01:/etc/cups # lpoptions
>
> job-sheets=none,none raw=true HPOption_Disk=RAMDisk MediaType=Plain Resolution=600dpi PageSize=Letter PageRegion=Letter InputSlot=Auto HPOption_PaperPolicy=Crop
>
> Here's my cupsd.conf:
>
> su-cupsprd01:/etc/cups # cat cupsd.conf
> #LogLevel info
> LogLevel debug
> Printcap /etc/printcap
> User lp
> Group lp
> RunAsUser Yes
> Port 631
> Port 80
> HostNameLookups On
> Browsing On
> BrowseAddress 10.255.255.255
> BrowseAllow 10.
> BrowseDeny All
> KeepAlive On
>
> #KeepAliveTimeout - controls how long a persistent HTTP connection remains open after the last request.
>
> #KeepAliveTimeout 60
> KeepAliveTimeout 86400
>
> #LimitRequestBody - controls max size of print files.
> LimitRequestBody 0
>
> #Timeout - amount of time to wait before an active HTTP or IPP request times out.
> #Timeout 300
> Timeout 86400
>
> <Location />
> Order deny,allow
> Deny from all
> Allow from 127.0.0.1
> Allow from 10.1.0.0/255.255.0.0
> </Location>
>
> <Location /admin>
> Order Deny,Allow
> Deny from All
> Allow from 127.0.0.1
> Allow from 10.1.0.0/255.255.0.0
> </Location>
> su-cupsprd01:/etc/cups #
>
> I'd really appreciate some help.
> Thank you,
> Jeff Borders


I think I found my problem.  I talked with a cisco engineer and he proved that we have a MTU problem with our cisco switches that were set to jumbo frames.  That makes sense b/c I was able to print small jobs.  -jb